EP2834520B1 - Pump, and toy device such as a toy sprinkler or a toy fountain with a pump - Google Patents

Description

The invention relates to a pump of a game apparatus, such as a game sprinkler or a game fountain, with a pump housing having a suction opening and an outflow opening and containing at least one conveying means, such as a blade or a paddle wheel, for conveying liquid or gas through a Pipe, in particular pipeline.

To promote the flow through a conduit, it is common practice to provide a pump between two conduit segments. As a rule, a pump has two connections, for example flanges, which enable a fluid-tight connection of the line segments.

Such an arrangement is not without problems in particular if it is used in freely accessible areas, such as for example a swimming pool, and if at the same time the danger exists that the arrangement will be manipulated or damaged, for example by playing children. In particular, there is a risk that, for example, screw or flange connections, which have the task of sealingly connecting the pump to the adjacent line segments, are loosened or damaged. Such manipulation or damage may result in uncontrolled loss of water or gas. In addition, there is a risk of injuring themselves on protruding connecting parts, such as screw heads.

From the US Pat. No. 6,695,060 B1 and the EP 0 854 266 A2 Pumping systems for the extraction of oil are known. For maintenance or replacement purposes, the pumps located in the wellbore are retrieved by leaving the pump drive through the conduit to the surface.

From the GB 2 471 167 A a water pump for pumping groundwater is known, which has a piston assembly, and a method for the remediation of used water pumps, which are used in deep wells for the promotion of groundwater.

From the US 2010/0008757 A1 For example, there is known a ducted propeller device having a housing, a drive motor, and a propeller which finds use in radio controlled model airplanes. To generate an air flow, the propeller is driven by the motor so that the air flow is moved through the housing.

The US Pat. No. 4,652,247 A1 refers to a remote-controlled model amphibious vehicle. In particular, for the movement of the amphibious vehicle, a drive wheel is provided, which is located in a housing. This drive wheel is driven by an electric motor. By driving this drive wheel a movement of the floating on the water amphibious vehicle is possible.

A game device with pump is off NL 52978 known.

It is the object of the present invention to provide a pump which is better protected in the installed state from damage and manipulation and manages without protruding connecting parts.

The object is achieved by a pump of a game device, such as a game sprinkler or a Spielfontäne, of the type mentioned above, which is characterized in that the pump housing is designed and intended completely in the line, in particular pipeline, inserted and in the line in a use position, preferably releasably, to be fixed.

An essential basic idea of the present invention is based on at least the pump housing to be arranged protected within a conduit.

Such a pump has the very special advantage that the pump housing must be adapted largely exclusively with respect to the inner diameter of the line, but not in terms of its length, since it usually does not matter over which distance the pump housing of the pump according to the invention within the line extends. Accordingly, it is advantageously not necessary to adapt the length of the line and / or segments to the dimensions of the pump.

The invention has the further advantage that the number of externally accessible connection points of a conduit system is smaller than in known conduit systems.

In the pump according to the invention at least one sealing means is provided, which is intended and designed to act between the pump housing and the line inside. In particular, it can advantageously be provided that the sealing means prevents a flow past the line past the one pump housing.

According to the invention it is provided that at least a part of the sealing means additionally acts at least as part of a fixing means with which the pump housing is directly or indirectly in the position of use - preferably releasably - relative to the line fixable. This embodiment has the particular advantage that no additional fixing means for fixing the pump housing within the conduit is necessary.

Preferably, the sealing means is formed and arranged so that in the use position between a between the pump housing and the Inside line existing gap is sealed and / or closed. In this way it is achieved that the liquid and / or the gas can not flow past the pump housing. Rather, the liquid and / or the gas can then pass exclusively through the pump.

In another device according to the invention a fixing means is provided, with which the pump housing is directly or indirectly in the position of use - preferably releasably - relative to the line fixable. In this embodiment, a separate sealing means is preferably provided which prevents the liquid and / or the gas from flowing past the pump housing.

In an advantageous manner according to the invention, provision may be made for the circumference of the fixing means and / or the sealing means to be variable. For example, it is advantageous if the fixing means and / or the sealing means during the insertion of the pump housing into the conduit has a diameter which is smaller than the inner diameter of the conduit. After the pump housing has reached the use position, can - for example, with a means for varying the circumference of the Fixing means and / or the sealing means are increased until the fixing means or the sealing means is applied by clamping and / or sealing on the line inside.

In particular, can advantageously be provided as a means for varying the circumference of a pressing device for direct and / or indirect pressing at least a portion of the fixing means and / or the sealing means against the line inside and / or against the pump housing.

For example, the sealing means and / or the fixing means may comprise at least one elastic ring, which is by means of a pressing device for effecting a fixation in the position of use and / or for bringing about a sealing effect, in particular in the axial direction, clamped, in particular squeezable. By clamping the ring, for example between a thrust washer and the pump housing or between two pressure plates, a part of the ring material swells radially outwards, so that increases the circumference of the ring. The ring is preferably sized so that it has an outer diameter in the unpressed state, which is smaller than the inner diameter of the conduit in which the pump housing of the pump is to be used, and that the ring sealingly and / or clamped to the Inboard side snuggles. As a result, an accidental displacement of the pump housing is effectively avoided within the line.

In particular, it can be provided that the pressing of the sealing means, in particular of the elastic ring, by means of running through the pump housing screws or threaded rods or by means of screws which engage in threaded bores of the pump housing, is effected.

The elastic ring can advantageously consist, for example, of EPDK (ethylene-propylene-diene rubber).

In an advantageous embodiment, which develops a particularly good sealing effect and a particularly good fixing effect, a stack of sealing rings is used.

In a particularly compact and easy to install embodiment, the sealing means and / or the fixing means are arranged directly or indirectly frontally on the pump housing or can be arranged. In particular, it can be provided that the sealing means and / or the fixing means can be fastened and / or clamped by means of screws or threaded rods extending through the pump housing or by means of screws or threaded rods engaging in threaded bores of the pump housing.

In a particularly advantageous embodiment, at least one sealing and / or fixing means is provided at each end of the pump housing. Alternatively or additionally, it can be provided that, viewed in the flow direction, at least one sealing and / or fixing means is provided in front of and behind the pump housing and / or the operating means.

The abovementioned embodiments have the very particular advantage that the area around the pump housing between the respective two sealing means remains largely pressure-free and / or fluid-free. This advantageously achieves, for example, that no liquid and / or gas can escape through an opening arranged in the line between the two sealing means for coupling the operating element. Rather, the region of the opening is effectively separated by the sealing means provided on both sides of the opening from the fluid-carrying spaces of the conduit.

In an advantageous embodiment, an operating means for actuating the pump is provided. Preferably, the operating means is adapted to be arranged at least partially outside the conduit and to be brought into operative communication with at least one of the remaining pump components through an opening in the conduit.

In one, especially of children, easy-to-use design, the operating means is rotatably mounted relative to the pump housing.

The operating means may comprise, for example, a crank or a crank wheel. In a particular embodiment, it is provided that the pump - in particular manually - with a crank or a crank wheel is actuated.

The operating means is formed in a particular embodiment as a pedal crank drive or as a bicycle pedal crank drive.

In particular, it can be provided that the operating means by means of a rotary shaft - preferably removable - with other pump components, in particular, for example, the fins of the pump designed as a lamella pump is in operative connection. The rotary shaft may be formed and arranged to extend in the use position through an opening of the conduit from the inside to the outside.

As already mentioned, it can be advantageously provided that the pump is designed as a manually operated pump and / or that the pump is constructed such that the energy for conveying the liquid is applied exclusively manually or by pedal crank drive.

In an advantageous embodiment, the pump is designed as a flow pump.

In particular, it can be provided that the pump is designed as a rotary piston pump, in particular as a rotary piston pump or as a rotary vane pump or as a rotary piston pump or as a gear pump. It can also be provided that the pump is designed as an eccentric screw pump or as a screw feed pump or as an impeller pump or as a radial piston pump.

In that regard, arranged in the pump housing conveying means may for example be a lamella of the pump, if this is designed as a lamella pump. For example, it can also be provided that the conveying means is a rotary piston when the pump is designed as a rotary piston pump. It is For example, also possible that the arranged in the pump housing conveying means is a gear when the pump is designed as a gear pump. The conveying means, which is arranged in the pump housing, may also be an Archimedean screw, if the pump is designed as a screw feed pump. It is also possible that the conveying means is a membrane when the pump is designed as a diaphragm pump.

Depending on the installation situation or application requirement, the pump may be designed, for example, as an axial pump. However, it is also possible to form the pump as a radial pump.

In a particular embodiment, the pump has a discharge nozzle and / or a discharge nozzle. These can, as will be described in more detail below, in particular be connected to an inner line of the conduit in which the pump is to be arranged.

It can also be provided that the pump has a discharge nozzle or a discharge nozzle. These can, as will be described in more detail below, in particular be connected to an inner line of the conduit in which the pump is to be arranged.

Particularly advantageous is a line, in particular a pipeline, in which a pump according to the invention is arranged. In this case, it can be provided, in particular, that the line is flowed through directly by a liquid, in particular by actuation of the pump.

Alternatively, however, it can also be provided that an inner line, in particular a feed line connected to the pump and / or a discharge line connected to the pump, is laid within the line for the liquid to be conveyed.

In particular, it can be provided that the liquid is guided exclusively in the inner pipe and / or that the intermediate space between the pipe and the inner pipe is free of liquid. This embodiment has the advantage that the fixing means are not necessarily designed as a sealant have to. The line is used in this embodiment in particular as a mechanical support and protection against damage.

The supply line may for example be connected to an intake port of the pump, while the discharge line is connected to a discharge port of the pump. However, it is also possible for the pump to be connected exclusively to a feed line functioning as an inner line and for the liquid flowing out of the pump then to flow directly inside the line or an inner line. Conversely, it is of course also possible that the pump is connected exclusively to a drain line acting as an inner line and the liquid of the pump is fed directly through the line without a supply line is provided.

As already described in detail, the pump according to the invention can be used very advantageously with a line, in particular a pipeline. The line can in principle be arbitrarily long, but it must be ensured that after insertion of the pump housing into the line activation of the sealing and / or fixing means is still possible. For this purpose, for example, very long tools, such as extra long Allen key can be used. However, it is also conceivable to carry out an activation of the sealing and / or fixing means by the opening provided for the operating means.

The conduit is preferably substantially longer than its inner diameter. In particular, it can be provided that the line is more than twice as long, in particular more than four times as long, in particular more than ten times as long as the pump housing.

The pump according to the invention can be used particularly advantageously where the risk of external damage and / or manipulation influences exists. The pump according to the invention can be used particularly advantageously in a game device, in particular a game sprinkler or a game fountain. Particularly advantageous is a game device, in particular a Game sprinklers or a game fountain, with a pump according to the invention or with a line according to the invention.

In an advantageous embodiment of such a game device, this has a vertically extending pipe, in which approximately at a height of 80 cm to 90 cm, the pump according to the invention is arranged. For example, it can be provided that an operator, in particular a child, actuates the pump by turning a handwheel of an operating means and applies the energy for conveying a liquid. In particular, it can be provided that an operator can adjust the jet strength of a water fountain by strong or less powerful actuation of the pump. One way of damaging or manipulating the pump located inside the pipeline is advantageously to the greatest extent possible for the operator, even if he should have tools.

According to an independent idea of the invention, which in principle can be implemented without the pump according to the invention, a bicycle rack can be provided with a pump which has a pedal crank drive as the operating element. Preferably, however, such a game device is equipped with a pump according to the invention. In that regard, may be provided in particular that the game device has a bicycle frame and a pedal drive, wherein a tube of the bicycle frame forms the conduit in which the pump is arranged.

In a particular embodiment, a spray nozzle for discharging the fluid conveyed by the pump is arranged on the bicycle frame. In particular, it can be provided that the liquid to be dispensed through the spray nozzle, conveyed by the pump, reaches the spray nozzle through a pipe or through a plurality of pipes of the bicycle frame. Such a design is particularly robust and has the particular advantage that no additional lines are required.

In particular, it can also be provided that the bicycle frame has a rotatably mounted arm and that on the handlebar a spray nozzle for discharging the pumped with the liquid pump is arranged. At this Execution, a person sitting on the bike frame by kicking with his legs promote the liquid to the spray nozzle and control the direction of the spray fountain by turning the handlebar.

Other objects, advantages, features and applications of the present invention will become apparent from the following description of an embodiment with reference to the drawings.

Fig. 1

eine schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Pumpe, deren Pumpengehäuse in einer Leitung eingesetzt ist,

Fig. 2

eine perspektivische Ansicht eines Ausführungsbeispiels einer erfindungsgemäßen Pumpe ohne Darstellung des Bedienmittels,

Fig. 3

eine Schnittdarstellung eines Ausführungsbeispiels einer erfindungsgemäßen Leitung mit einer erfindungsgemäßen Pumpe, und

Fig. 4

ein Ausführungsbeispiel einer erfindungsgemäßen Spielvorrichtung.

Show it:

Fig. 1

a schematic representation of an embodiment of a pump according to the invention, the pump housing is inserted in a line,

Fig. 2

a perspective view of an embodiment of a pump according to the invention without representation of the operating means,

Fig. 3

a sectional view of an embodiment of a conduit according to the invention with a pump according to the invention, and

Fig. 4

an embodiment of a game device according to the invention.

FIG. 1 shows a pump 1 according to the invention a game device, the pump housing 2 is inserted in a line 2 and fixed in a position of use. With the help of the pump 1, a liquid or a gas can be conveyed through the conduit 2. The pump 1 has a pump housing 3 with a suction opening 4 and an outflow opening 5. At the intake 4 there is an intake 24 through which the liquid to be delivered can pass into a feed channel 6. The feed channel 6 opens into a receptacle 7, in which at least one directly acting on the liquid conveying means, such as For example, the fins of a multi-disk pump or the gears of a gear pump are housed. The conveyed liquid is conveyed by the pumping process into an outlet channel 23 and then through the outflow opening 5 and an outflow 8.

The pump 1 has an operating means 9 arranged outside the line 2, namely a manually operated crank wheel 10. The crank wheel 10 is connected by means of a rotary shaft 11 with the arranged in the receiving means 7 in operative connection. This is such that by rotating the crank wheel 10, gas and / or liquid is pumped from the suction side of the pump 1 (in the figure right) to the discharge side of the pump 1 (in the figure on the left). The rotary shaft 11 protrudes through an opening 12 in the conduit second

The pump 1 has two sealing means 13 which prevent a flow of gas and / or liquid past the pump housing 3. The sealing means 13 also act as fixing means 14 which fix the valve body in the position of use relative to the conduit 2. The sealing means 13 are respectively arranged at the ends of the pump housing 3. On the one hand, this has the advantage that the pump housing 3 is fixed particularly securely. In addition, this has the advantage that the area between the two sealing means 13 pressure-free - especially free of the pumped fluid - remains so that there is no risk that liquid or gas exiting through the opening 12 of the line 2.

FIG. 2 shows a perspective view of a pump 1 according to the invention with a pump housing 3. The pump housing 3, by means of two fixing means 14, which also serve as a sealing means 13, in a - not shown in this figure line 2 - are fixed. The fixing means 14 have pressure plates 15, between each of which a plurality of sealing rings 16 are arranged.

In each case the entire stack, each consisting of the two pressure plates 15 and the sealing rings 16, can be pressed by means of running through the pump housing 3 screws 17. This is the screw heads the screws 17 arranged opposite, outer thrust washer 15 is provided with threaded holes 18 into which the screws 17 engage. By compressing the sealing rings 16 swell radially outward, whereby on the one hand a fixation of the pump housing 3 within a conduit 2 (not shown here) is effected and on the other hand at the same time a seal. The space between the two stacks of sealing rings 16 is thereby effectively separated from the fluid-carrying portions of the conduit.

In FIG. 2 is the sake of clarity, the control means not shown.

FIG. 3 shows a conduit 2 according to the invention, in which a pump 1 according to the invention is arranged. The pump housing 3 is held in the conduit 2 by means of two fixing means 14. In a receptacle 7 of the pump housing 3, there are at least one conveying means which comes into direct contact with the fluid to be delivered, such as, for example, the lamella 19 and the lamella holder 20, the pump 1 designed as a lamellar pump.

The conduit 2 has at its lower end a flange 21 which allows a vertical installation of the conduit 2 and screwing to the ground.

In this embodiment, the liquid is exclusively in an inner line, namely in an intake pipe 22 which is connected to the intake port 24, and in a drain hose, not shown, which is connected to the outlet port 8, out.

Fig. 4 shows an embodiment of a game device according to the invention, which has a bicycle frame 25 with a pump 1 according to the invention, wherein the pump 1 is arranged in a tube of the bicycle frame 25. As a control element serves a pedal crank drive 26 which has on each side of the bicycle frame 25 each one provided with a respective pedal 27 pedal crank 28. In this embodiment, a person sitting on a saddle 32 of the bicycle rack 25 can convey the liquid to the spray nozzle 29 by kicking his legs.

The game device also has a spray nozzle 29 for discharging the pumped with the pump 1 liquid. The spray nozzle 29 is arranged on a rotatably mounted arm 31 of the bicycle frame 25, so that by rotating the handlebar 31, the direction of the spray fountain (not shown) can be controlled.

The auszubringende by the spray nozzle 29, funded by the pump 1 liquid passes through a plurality of tubes of the bicycle frame 25, in particular through a down tube 30 of the bicycle frame 25, to the spray nozzle 29th

LIST OF REFERENCE NUMBERS

1

pump

2

management

3

pump housing

4

suction

5

outlet

6

feed

7

admission

8th

outflow

9

operating means

10

crank

11

rotary shaft

12

opening

13

sealant

14

fixative

15

pressure washers

16

seals

17

screw

18

threaded holes

19

lamella

20

Blade support

21

flange

22

intake

23

exhaust port

24

intake

Claims (19)

1. Pump (1) of a toy sprinkler or a playing fountain with a pump housing (3) that has a suction intake opening (4) and an outflow opening (5), and that contains at least one conveying means, such as for example a lamella or a blade wheel, for conveying a liquid or a gas through a conduit (2), characterized in that the pump housing (3) is configured and intended to be completely inserted into the conduit (2) and to be fixated inside the conduit (2) in a usage position, preferably in a re-releasable manner, wherein at least one sealing means (13) is provided that is intended and configured to act between the pump housing (3) and the inner side of a conduit (2), and wherein at least one part of the sealing means (13) additionally functions as at least a part of a fixing means (14) by means of which the pump housing (3) is directly or indirectly fixated in the usage position relative to the conduit (2), preferable in a re-releasable manner.
2. Pump (1) according to claim 1, characterized in that the at least one sealing means (13) is intended and configured to act in such a manner between the pump housing (3) and the inner side of a conduit (2) that no liquid can flow past the pump housing (3).
3. Pump (1) according to one of the claims 1 or 2, characterized in that a pressing device is provided for directly and/or indirectly pressing at least a part of the fixating means (14) and/or of the sealing means (13) against the inner side of the conduit and/or against the pump housing (3).
4. Pump (1) according to one of the claims 1 to 3, characterized in that

   a. the sealing means (13) and/or the fixating means (14) can be arranged directly or indirectly at the front side of the pump housing (3), and/or that

   b. the sealing means (13) and/or the fixating means (14) is arranged in the usage position directly or indirectly at the front side of the pump housing (3).
5. Pump (1) according to one of the claims 1 to 4, characterized in that the sealing means (13) and/or the fixating means (14) can be attached and/or can be clamped by means of screws (17) or threaded rods that extend through the pump housing (3) or by means of screws (17) or threaded rods that mesh into threaded holes of the pump housing.
6. Pump (1) according to one of the claims 1 to 5, characterized in that the sealing means (13) and/or the fixating means (14) has at least one elastic ring which can be clamped by means of a pressing device so as to cause a fixation in the usage position, and/or so as to create a sealing effect in the axial direction, in particular by means of screws or threaded rods that extend through the pump housing (3).
7. Pump (1) according to one of the claims 1 to 6, characterized in that

   a. at least one sealing means (13) and/or a fixating means (14) is provided at each end of the pump housing (3), and/or that

   b. at least respectively one sealing means (13) and/or a fixating means (14) is provided in front of and behind the pump housing (3) and/or an operating means (9), as viewed in the flow direction.
8. Pump (1) according to one of the claims 1 to 7, characterized in that the pump (1) has an operating means (9), and in that the operating means (9) is configured for the purpose of being arranged at least partially outside the conduit (2) and to be brought into operative connection with at least one of the other structural components of the pump through an opening (12) inside the conduit (2).
9. Pump (1) according to claim 8, characterized in that the operating means (9) is mounted so as to be rotatable relative to the pump housing (3), preferably in that the operating means (9) has a crank or a crank wheel (10), and/or that the pump (1) can be operated - in particular in a manual manner - by means of a crank or a crank wheel (10).
10. Pump (1) according to one of the claims 8 or 9, characterized in that the operating means (9) is configured as a foot treadle drive or as a foot pedal drive.
11. Pump (1) according to one of the claims 1 to 10, characterized in that the pump (1) is configured as a rotary pump, in particular as a rotary piston pump or as a rotary vane pump, or as a circumferential piston pump, or as a gear type pump, or as a lamella pump, or as a progressive cavity pump, or as a spiral feed pump, or as an impeller pump, or as a radial piston pump.
12. Pump (1) according to one of the claims 1 to 11, characterized in that the pump (1) is configured as a radial pump or as an axial-flow pump.
13. Conduit (2), in particular a pipeline, with a pump (1) according to one of the claims 1 to 12.
14. Conduit (2) according to claim 13, characterized in that an inner conduit, in particular a supply conduit that is connected to the pump (1) and/or a discharge conduit that is connected to the pump (1), is installed inside the conduit for the liquid.
15. Conduit (2) according to claim 14, characterized in that the supply conduit is connected to an intake socket (24) and/or that the discharge conduit is connected to an outlet socket (8) of the pump (1).
16. Conduit (2) according to one of the claims 14 or 15, characterized in that

    a. the inner conduit is at least partially configured as a hose line, or that

    b. the inner conduit is at least partially configured as an internal pipe,

    and that the liquid is conducted exclusively inside the inner conduit, and/or that the intermediate space between the conduit (2) and the inner conduit is liquid-free.
17. Playing device, in particular toy sprinkler or playing fountain, with a pump (1) according to one of the claims 1 to 12, and/or with a conduit (2) according to one of the claims 13 to 16.
18. Playing device according to claim 17, characterized in that the playing device has a bicycle frame and a foot treadle drive, wherein a pipe of the bicycle frame forms the conduit inside of which the pump is arranged.
19. Playing device according to claim 18, characterized in that

    a. a spray nozzle for dispensing the liquid that is conveyed by means of the pump is arranged at the bicycle frame, and/or that

    b. the bicycle frame has rotatably mounted handlebars, and that a spray nozzle for dispensing the liquid that is conveyed by means of the pump is arranged at the handlebars, and/or that

    c. a spray nozzle for dispensing the liquid that is conveyed by means of the pump is arranged at the bicycle frame, and that the liquid that is to be dispensed through the spray nozzle is transported to the spray nozzle through a tube or through multiple tubes of the bicycle frame.

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